Ahmed Abdelrahman

Helping Klarna land new customers by providing on-boarding APIs to our customers which take care of all the on-boarding flow from helping to check if their work is legit and compliance to setting up Klarna products for them.

Worked on Kyma, Kyma is an open source cloud-native application development framework. It provides the last mile capabilities that a developer needs to build a cloud-native application using several open-source projects under the Cloud Native Computing Foundation (CNCF), such as Kubernetes, Istio, NATS, Kubeless, and Prometheus, to name a few. It is designed natively on Kubernetes and, therefore, it is portable to all major cloud providers.

• Enable High Availability for the Hadoop Distributed File System (HDFS) by deploying two Name Nodes in an active/passive configuration and using Quorum Journal Manager .
• Implement a distributed Logging and tracing system for microservices by using sleuth as instrument and Zipkin and ELK stack.
• Implement automated jobs "ETLs" to collect data from different systems 'Adwords, Facebook , internal tracking' and make sense out of it .
• Design High Available Microservices to help Engineering team and Managers to take data driven decisions by configuring a load balancer and 5 instance of the API app .
• Help data-scientist and product managers on their data requirements, by gathering their requirement and discuss it within the team to find a way to make it happen.
• Maintain the Data-warehouse system infrastructure by adding new nodes to the cluster and configure it and install the necessary component 'e.g: hdfs' ,..etc.
• Monitor the Data-warehouse system by defining SLO and a monitoring matrix and being on call if something happen.
• Implement cache layers by using hdfs and yarn .

Kyma is an open source cloud-native application development framework. It provides the last mile capabilities that a developer needs to build a cloud-native application using several open-source projects under the Cloud Native Computing Foundation (CNCF), such as Kubernetes, Istio, NATS, Kubeless, and Prometheus, to name a few. It is designed natively on Kubernetes and, therefore, it is portable to all major cloud providers. https://github.com/kyma-project/kyma

Donald is a Data Warehouse System which is used as a large store for transformed data from a wide range of internal and external resources, and on top of that there are APIs and visualisation tools to guide other departments/management and enable the company to be data driven company.

• A/B Test Framework which allow Engineers to A/B test more than one feature/version at the same time and then measure it against specific matrix, by assign traffic to specific groups and based on the group/label certain feature will be enabled .